Monitor



FIG. 1 is a perspective view of a monitor showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is another perspective view thereof.

The dashed broken lines depict portions of the monitor in which the design is embodied that form no part of the claimed design. 

CLAIM The ornamental design for a monitor, as shown and described. 